ovn 04 digital viscometer

7/27/2019 OVN 04 Digital Viscometer

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To: OilView Users

Subject: OilView News #4, "Digital Viscometer"

This memo provided to share OilView information among OilView minilab users.

If you know others who want to be added to this news letter, just "reply" to

me and let me know their email address. If you want to be taken off of thisnews letter mailing, please respond and I will take your name off the list.Please respond to me with your questions, comments, and suggestions.Please send me your case histories so I can share them with the user group.

Ray Garveyemail: "[email protected]"

Today's subject: "Digital Viscometer"

The Digital Viscometer is intended for two primary purposes within industrial plants.First, and most important, it is a primary tool for identification of wrong or misappliedlubricant. If you will keep a list on the wall behind the minilab of oil viscosity anddielectric constant values, you will probably fingerprint every different oil used in the

plant. Many times oils will have similar dielectric but different viscosity. Other timesthey have the similar viscosity but different dielectric values. This is because ofdifferences in ISO grade, base stock, and additive packages. So the first and mostimportant use of a digital viscometer is to verify correct oil.

Second, the Digital Viscometer is used to find dilution. Dilution is the mixing of a lowviscosity fluid such as liquid fuel or gaseous Freon or ammonia in with the oil. Thiscauses the viscosity to plummet.

The other instruments in the minilab are better suited for detecting other problemssuch as contamination or lubricant degradation, although you may want to use thetrend of viscosity values to confirm this sort of finding.

If you are interested in knowing how the digital viscometer works you can go read USPatent 5,394,739 or just copy this into your internet explorer and say "Go":http://www.compsys.com/drknow/aplpapr.nsf/38e828201e3b2af7852565a30053fd81/62a74f812fe3d02f852565a2006443aa?OpenDocument

Troubleshooting. Here are some useful troubleshooting tips to use with your 51DVand 52D digital viscometer.

1. The viscometer needs to be re-calibrated. Suggest using ISO 14, 32, 46,68, 100, 220, 460, and 680 oils. Start with the highest viscosity calibration oil andwork to the lowest in sequence. If you have the CSI supplied standards you may findthat we have added ISO 137 and removed ISO 46 for better calibration. Be sure toenter the lab measured V @ 40C, V @ 100C, and specific gravity (density in g/cc).

2. Need to assign a reference to the measurement point before startingtest with DV. Be sure the measurement point has a reference.3. Reference oil was missing either V @ 40C, V @ 100C, and specificgravity. Note that specific gravity is very important for synthetic oils. For mostmineral oils it is reasonable to allow the software to "auto-calculate" the density ofthe reference oil. Without this reference information the measurement should berepeatable but may not be accurate, depending on viscosity index.4. Testing hot or cold oils. You must allow the oil to come to ambienttemperature (same as DV temperature) before testing it. Otherwise the fluid in
http://www.compsys.com/drknow/aplpapr.nsf/38e828201e3b2af7852565a30053fd81/62a74f812fe3d02f852565a2006443aa?OpenDocumenthttp://www.compsys.com/drknow/aplpapr.nsf/38e828201e3b2af7852565a30053fd81/62a74f812fe3d02f852565a2006443aa?OpenDocumenthttp://www.compsys.com/drknow/aplpapr.nsf/38e828201e3b2af7852565a30053fd81/62a74f812fe3d02f852565a2006443aa?OpenDocumenthttp://www.compsys.com/drknow/aplpapr.nsf/38e828201e3b2af7852565a30053fd81/62a74f812fe3d02f852565a2006443aa?OpenDocument


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contact with the viscometer cup will be a different temperature during the test thanthe fluid in the center of the cup.5. Dirt in the cup. Dirt or other debris in the cup can slow down the rotation ofthe ball.6. The 51DV has gotten too hot from repeated tests with no rests (notan issue for 52DV). When the internally generated heat from resistance heating of

the magnet coils is not allowed to cool, the viscometer heat adversely affects thethermistor temperature measurement. There are three solutions for this: only usethe viscometer as often as you use the 5100 -- allow it to rest between tests, use ahouse fan to blow room temperature air around the viscometer to remove heatfaster, purchase an upgrade to the 52DV which has a fan built into it.7. Repeated testing of the same sample was done without replacing theoil in the 51DV cup (not an issue for 52DV). This is related to heating from the51DV electronics and electromagnets. With the 51DV you must replace the fluid inthe cup before each test. Viscometer self-heating in the 51DV can cause ameasurement drift when repeated tests are run without replacing the sample in thecup. This is not an issue with the 52DV. With the 52DV you can re-test the same oilin the cup as many times as you like and results will repeat well.8. It is important to verify viscometer performance. This will highlight oneof the above problems and allow you to correct the cause. Verify performance withthe DV by testing one of the calibration fluids. By the way, it is important to verifyperformance with any instrument, especially before taking a costly maintenance


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From: Ray Garvey, CSI (423) 675-3100 faxTo: OilView MiniLab UsersDate: Aug 23, 1999Subject: CONSUMABLES AND OTHER SUPPLIES FOR OILVIEW

MINILABS

Calibration fluids:CSI Part # Description Shelf LifeA510050 51DV cal fluid 8 pack UnlimitedA510051 5100 most oils sensor calib (Fluids A & B) 5 yr unopened, 90days openA510052 5100 phosphate ester sensor calib (Fluids B & C) 5 yr unopened, 90days open09600 Particle Counter ACFTD cal fluid, 400 ml bottle 1 year09610 Particle Counter ultraclean kerosene, 1 L bottle Unlimited

4 ounce PET or HDPE bottle w/ lid (PET bottle Same as CSI Part#10698)Distribution Specalists Inc. 45449 Severn Way #179 Sterling, VA 22170(703)430-8986 (fax -9317)

4 ounce PET or HDPE Bottles

Easy Vac Inc, 7922 Nubbins Ridge Rd., Knoxville, TN 37919talked to Earl Johnson 5/1/96, (423) 691-7510201-04 I HDPE Qty 500 cost $260/1000

Qty 50 cost $17.75/50201-04 HDPE sturdy Qty 50 cost $19.40/50

Qty 500 cost $290/1000201-04 C clear (PET) Qty 50 cost $31.40/50

Qty 550 cost $536/1000

4 ounce HDPE bottles w/ lid

Thompson Pump Company sells500 at a time $0.29 per Martha on 5/1/96 at phone (214) 352-6334

1, 2, 4, and 16 oz HDPE bottles w/ 38mm lids (Supplier to Thompson)Midland Manufacturing Company, Monroe, Iowa (515) 259-2625500/pack min order 266.98/1000 includes the cap (prices only for the 4 ounce bottles)talked to Marianne on 5/1/96. 5/7/96 - I received 1, 2, 4, and 16 oz bottles w/ 38mm lids, theylook good and work well, although they are dirty on the inside. All bottles have ribs. The 1, 2,and 4 ounce bottles all work with the PC or Analzyer. To use them with the FW, simply removethe collar over the light sensors. The 16 ounce bottle works well for either the Analzyer or theFW (without collar).

4 ounce AC HDPE bottles(Note that Acorn is the only supplier of clean bottles for accurate particle counting.)Acorn Industries (313) 261-294011844 Brookfield AveLivonia, MI 48150

$1.41each certified clean$0.52 each without certification for cleanliness (i.e., as manufactured)


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talked to Ed Schiller 5/1/96

Tubing NEWAGE 01PENAT5, (same as CSI Part#92079)Easy Vac Inc., 7922 Nubbins Ridge Rd., Knoxville, TN 37919, (423)691-7510

Manual Sple Pump ACCU-VAC #1991, (same as CSI Part#92610)

Thompson Pump Co., 2682 Myrtle Springs Ave., Dallas, TX 75220 (800)235-7867

CO2 CARTRIDGE FOR OilView PARTICLE COUNTER:

Here are the sources for CSI P/N 09514, which actually calls out either a 60 gram or 68gram, 5/8" threaded CO2 cartridge:

Source Part Number Last Cost------ ----------- ---------

Leland Limited, Inc. P/N 87203 (60 gram) or $12.80 eaBox 382 P/N 87207 (68 gram)

Bedminster, NJ 07921Attn: Lee Stanford

Southern FluidPower, Inc. Parker Hannifin P/N 601895 $195 per2900 Dodds Ave. (68 gram 5/8" threaded, 10-pack Chattanooga, TN 37407 bought from Leland?)Attn: Luke Winder

Source for calibration oils for Digital Viscometer

Cannon Instrument Company Phone : (814) 353-80002139 High Tech RoadState College, PA 16803

Visc 40C Visc 100C Cannon Part #S20 17.94 3.740 9729-C35S60 54.10 7.692 9727-C40S200 180.3 16.76 9727-C45N350 310.3 23.84 9727-C47N1000 941.2 79.74 9727-C52All standards come in a 1 pint bottle at a cost of $45 per bottle.

Delivery time was 2 weeks.


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VACUUM CHAMBER:

Available from Fisher Scientific 1-800-766-7000 (fax 1-800-926-1166)

Vacuum Desiccator, Polycarbonate with Silicone O-RingFisher No. 08-642-7 $59.00

Or Nalge No. 5310-0250

Helpful accessory for testing is a10 inch (230 mm) metal plate for desiccator:Fisher No 08-642-10 $36.80Or Nalge No. 5312-230GAST PRESSURE/VACUUM PUMP:

Available from Fisher Scientific 1-800-766-7000 (fax 1-800-926-1166)

115 V A/C, pressure to 100 psig (689 kPag), vacuum to 25 in. Hg (84 kPag), free air flow37 L/min (1.3 cfm)

Fisher No. 01-092-25 $360.00Or Gast No. 1HAB25BM100X

230 V 50 Hz A/C, pressure to 100 psig (689 kPag), vacuum to 25 in. Hg (84 kPag), freeair flow 34 L/min (1.2 cfm)Fisher No. 01-092-26 $474.00Or Gast No. 1HAE25AM104X

ULTRASONIC BATH FOR PARTICLE COUNT SAMPLE PREPARATION

Cole Palmer Instrument Company7425 North Oak Park AvenueNiles, Illinois 607141-800-323-434, (708) 647-7600, FAX (708) 647-9660

Ultrasonic Cleaner 115 V AC H-08890-00 $270 (same as CSI #93415)220 V AC H-08890-05 $355

Tray insert for samples H-08850-42 $43 (same as CSI #75000)

ovn 04 digital viscometer

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